I've written my own CGI untainting library which uses regular expression variables like qr/^.*$/ to validate incoming data. I'd like to extend this library to also provide automated frontend javascript field validation, preferably by using the same regular expression.

When I print a regular expression variable like the one above, I get (?^:^.*$). This looks to me like the original regular expression wrapped with (?^:.....), is this right?

In other words, is it safe just to remove the (?^: and the ) and send the middle bit through to the frontend javascript, or does this wrapper actually mean something that I should try to understand?

MattLG

In reply to Printing regular expression variable by MattLG

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